Add proxies to docker role

handlers/main.yml

@@ -1,3 +1,9 @@
 ---
 - name: restart docker
-  service: "name=docker state={{ docker_restart_handler_state }}"
+  service:
+    name: docker
+    state: "{{ docker_restart_handler_state }}"
+
+- name: reload systemd daemon
+  systemd:
+    daemon_reload: true

tasks/main.yml

@@ -1,4 +1,5 @@
 ---
+
 - include_tasks: setup-RedHat.yml
   when: ansible_os_family == 'RedHat'
 
@@ -15,6 +16,8 @@
 - import_tasks: docker-1809-shim.yml
   when: ansible_service_mgr == 'systemd'
 
+- import_tasks: proxies.yml
+
 - name: Ensure Docker is started and enabled at boot.
   service:
     name: docker

tasks/proxies.yml

@@ -0,0 +1,24 @@
+---
+
+- name: Add proxies into systemd environment
+  when:
+    - ansible_service_mgr == 'systemd'
+    - >-
+      ansible_env['http_proxy'] is defined or
+      ansible_env['HTTP_PROXY'] is defined or
+      ansible_env['https_proxy'] is defined or
+      ansible_env['HTTPS_PROXY'] is defined
+  block:
+    - name: Establish docker service config dir
+      file:
+        dest: /etc/systemd/system/docker.service.d/
+        state: directory
+        recurse: true
+
+    - name: Establish docker proxy config
+      template:
+        src: proxies.conf.j2
+        dest: /etc/systemd/system/docker.service.d/proxies.conf
+      notify:
+        - reload systemd daemon
+        - restart docker

tasks/setup-Debian.yml

@@ -28,7 +28,8 @@
   when: add_repository_key is failed
 
 - name: Add Docker apt key (alternative for older systems without SNI).
-  shell: sudo apt-key add /tmp/docker-repo-key
+  become: true
+  command: apt-key add /tmp/docker-repo-key
   args:
     warn: false
   when: add_repository_key is failed

templates/proxies.conf.j2

@@ -0,0 +1,10 @@
+# {{ ansible_managed }}
+
+[Service]
+{% for proxy in ['http_proxy', 'https_proxy'] -%}
+{% if proxy in ansible_env %}
+{{- 'Environment= "%s=%s"\n' | format(proxy | upper, ansible_env[proxy]) -}}
+{% elif proxy | upper in ansible_env %}
+{{- 'Environment= "%s=%s"\n' | format(proxy | upper, ansible_env[proxy | upper]) -}}
+{%- endif -%}
+{%- endfor -%}